1 bài hóa làm hộ em

Đáp án+ Giải thích các bước giải:

`a)\ Ca(OH)_2`

`\text{PTK = 40 + (16+1).2 = 74(đvC)}`

`b)\ Al(OH)_3`

`\text{PTK = 27 + (16+1).3 = 78(đvC)}`

`c)\ Zn(NO_3)_2`

`\text{PTK = 65 + (14+16.3).2 = 189(đvC)}`

`d)\ Al_2(SO_4)_3`

`\text{PTK = (27.2) + (32+16.4).3 = 342(đvC)}`

`e)\ Ba(NO_3)_2`

`\text{PTK = 137 + (14+16.3).2 = 261(đvC)}`

`f)\ Mg_3(PO_4)_2`

`\text{PTK = (24.3) + (31+16.4).2 = 262(đvC)}`

`g)\ K_3PO_4`

`\text{PTK = (39.3) + 31 + (16.4) = 212(đvC)}`

`h)\ Fe_2(SO_4)_3`

`\text{PTK = (56.2) + (32+16.4).3 = 400(đvC)}`

`i)\ Al(NO_3)_3`

`\text{PTK = 27 + (14+16.3).3 = 213(đvC)}`